Boiler-furnace.



A. C. MOTT, in.

BOILER FURNAGE,

APPLICATION FILED JULY 10. I917.

Patented Apr. 9

mama l JIDII jvwcw or I .To all whom it may concern:

STA p. PATENT @FFIGE.

ABRAM c. MOTT, an, or PHILADELPHIA, PENNSYLVANIA, AssIGNoIt'ro ABRAM cox STOVE COMPANY, or PHILADELPHIA, PENNSYLVANIA, A CORPORATION or PENN- SYLVANIA.

BOILER-FURNACE.

Patented Apr. 9, 1918.

Application filed July 10, 1917. Serial No. 179,678.

Be it known that I, ABRAM G. Morr, Jr., a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented Boiler-Furnaces, of which the following is a specification.

This invention relates to steam or hot water heating boilers of-the sectional type and one of its objects is to provide a boiler with a furnace so constructed that it shall operate with a high degree of efliciency, particularly as regards the relatively complete consumption of he products of combustion of the fuel andthe consequent prevention of smoke.

A further object of the invention is to provide a boiler furnace of the above noted type which shall include a novel arrangement and construction of the independent Water containing sections especially designed to vinsure the heating and delivery of air not only to the body of the fuel in the furnace but also to the space above said fuel and immediately adjacent a heated fire-brick arch.

It is also desired to provide a novel form ofsection for usein a hot water or steam heater which shall be characterized by a novel disposition and form of air conduit;

These objects and other advantageous ends I secure as hereinafter set forth, reference being had to the accompanying drawings, in which,

Figure 1 is a sectional elevation on the line 1-1, Fig. 2;

Fig. 2 is a sectional elevation on the line 2-2, Fig. 1;

Fig. 3 is a horizontal sectional view on the line 3-3, sections made in accordance with my invention, and

Fig. 4 is a plan of a part of the base casmg.

In the above drawings, 15 represents the base casing defining an ash pit and supporting the sections 1-2-3-4 of a sectional steam or hot water heating boiler, of which those sections indicated at 1 and 4: cooperate with said base section to define the sides and portions of the front and back of the boiler proper, and those indicated at 2 and 3 are mounted between the first sections and each also define a portion of the front and back of the boiler.

Said sections are constructed in the well known manner to cooperate with a front cas Fig. 2, of one of the intermediate ing 10 and the base casing 15in defining a hollow space in which are mounted grate bars 6 dividing said space into an ash pit 5 and a furnace 7, and it is noted that said base casing has a series of pockets or bear-- ings 16 at the top of its rear portion for the reception of the ends of said grate bars. Between these pockets are a series of recesses 17 each opening on the front as well as the top edge of said base section. The intermediate sections 2 and 3 are formed to cooperate with the side sections 1 and 4 in supporting a series of flat fire-bricks at the top of the furnace which constitute a firebrick arch 8 inclined at a slight angle to the horizontal, upwardly from the back to within a short distance of the front of the boiler.

The adjacent faces of the various sections 14: are formed to cooperate to provide three separate flues, the entrance 9 to each of which is defined by the front edge of the firebrick arch 8, the adjacent sections and the inclosing casingor front 10 of the boiler, all of said flues finally discharging into a smoke box 11 at the rear of the boiler.

The particular feature of my invention is the peculiar construction of the side and in termediate sections and thebase section. It

will be noted that each of the side and intermediate sections has a vertical air passage 12 therein communicating; at its lower end with one of the recesses 17 in the rear of the ash pit casing. The upper end of each passage opens into the combustion chamber of the furnace immediately under the fire brick arch 8 and each of these conduits has a relatively narrow vertical slot 13 in its front wall and extending preferably from the bottom of the section to and communicating with the opening 14, which is elongated, as shown in Fig. 2.

The rear wall and each side of each conduit is surrounded by water in circulation 13 directly at or below the upper surface of the fuel in the fire box, with the result that a horough combustion. is attained: and the. gasesand smokearising from the fuel are.

completely burned by the presence of the heated air and the highly heated fire brick.

arch.

It will be understood thatsaid archis con stantly maintained by the combustion of fuel and gases in the highly heated condition which insures the continuance of this.

operation, because the air in passing through the. conduits 12, is, necessarily highly heated before. itcan; escape from the openings 1% adj acent the, underside .of said arch, so that. the. boiler will completely burn. all smoke.

formingmaterials andthere VVlllb6llO unburnt products of eombustlon. ClGllVQlBCl to the smoke box and stack.

Itisnoted that thetop openingslT of the recesses inthe base sectionliare laterally elongated in order that the conduits.12 .may. have-full area.passagewaysinto the ash pit. without forming dust collecting ledges in furnace and an ash pit, of a fire-brick arch; mounted insaid furnace; and a .ser1es of water-containing sections each formed to.

provide an air conduitopening at oneend into the ash pit. and. discharging at the op; positeend into the .topof the. furnace under the arch, said conduits having relatively narrow slots opening into the-furnace.

2. The combination in a boiler having'an ash. pit'and a furnace, of a fire-brick: arch.

Copies .of this patent may be obtained-for.

mounted in said furnace; with a series of water. containing sections each having an air conduit positioned with a wall c'KPr Sed; to

the furnace, each of said conduits havinggits lower. endqconnected to the ash'pit and at its upper end discharging directly into the top oftheafurnace under the arch, therebeingiaz relatively. narrow slot through the heated wall of each conduit" for substantially its entire length.

3. Thecombination in a boiler of'anash pitcasing having reeessesopening on its in terior vertlcal surfaceandlalso Q11 lfistop edge; "st-grate; with a. plurality offsections mounted on saidcasingand having verti cally extending conduits registering at their.

lower endsWith the. recesses in the ash pit casing and opening attheirupperends into the space above said grate constitut ng the furnace, there being. vertically extending slots. in the walls of'said conduits, opening into the furnace.

4.. Thecombination in a boiler. of sma h; pit casing having recesses opening on its interiorvertical surface.andalso on its topedge; a grate having members extending at their rear. ends. into pockets. formed in the ash pit casing between -.sa id recesses respectively; .With. a plurality, of sectiQnS .lnounted on said casing and having vertically extendg ingconduits registering attheir lower ends wi-ththe recesses. inthe ashpit casing and opening at theirupper endsinto the space- 7 above saidgrate; constituting; the furnace,

there being vertically; extendingjslot's in the wallsof said'jconduits ()RQIllIlg into the fur nace.,

VA'VBRAM' Moira", r.

five. .ccnts..each, by addressing the Commissionercfi ratents, Washington, D. .0.

Inwitnesswhereofl'afiix my,.signature l I 

